erweitern der Setter Methoden um die eingehenden Elemente zu prüfen

src/main/scala/org/rosi_project/model_sync/generator/acr_model/SSetter.scala

@@ -11,6 +11,7 @@ class SSetter(struc: SStructuralFeature) extends SMethod(
   name = s"set${struc.getName.firstLetterToUpperCase}",
   result = PredefTypes.Unit,
   params = Seq(SMethodParameter(struc.getName.head.toString, struc.getTypeElement)),
-  implementation = Seq(SMethodStatement(content = s"${struc.getName} = ${struc.getName.head}", usedTypes = Set(struc.getTypeElement)))) {
+  implementation = Seq(SMethodStatement(content = s"require(${struc.getName.head} != null)"),
+      SMethodStatement(content = s"${struc.getName} = ${struc.getName.head}", usedTypes = Set(struc.getTypeElement)))) {
 
 }

src/main/scala/org/rosi_project/model_sync/generator/acr_model/SSetterAdd.scala

@@ -11,6 +11,8 @@ class SSetterAdd(struc: SStructuralFeature, inner: STypedElement) extends SMetho
   name = s"add${struc.getName.firstLetterToUpperCase}",
   result = PredefTypes.Unit,
   params = Seq(SMethodParameter(struc.getName.head.toString, inner)),
-  implementation = Seq(SMethodStatement(content = s"${struc.getName} += ${struc.getName.head}", usedTypes = Set(struc.getTypeElement)))) {
+  implementation = Seq(SMethodStatement(content = s"require(${struc.getName.head} != null)"),
+      SMethodStatement(content = s"require(!${struc.getName}.contains(${struc.getName.head}))"),
+      SMethodStatement(content = s"${struc.getName} += ${struc.getName.head}", usedTypes = Set(struc.getTypeElement)))) {
 
 }
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src/main/scala/org/rosi_project/model_sync/generator/acr_model/SSetterRemove.scala

@@ -11,6 +11,8 @@ class SSetterRemove(struc: SStructuralFeature, inner: STypedElement) extends SMe
   name = s"remove${struc.getName.firstLetterToUpperCase}",
   result = PredefTypes.Unit,
   params = Seq(SMethodParameter(struc.getName.head.toString, inner)),
-  implementation = Seq(SMethodStatement(content = s"${struc.getName} -= ${struc.getName.head}", usedTypes = Set(struc.getTypeElement)))) {
+  implementation = Seq(SMethodStatement(content = s"require(${struc.getName.head} != null)"),
+      SMethodStatement(content = s"require(${struc.getName}.contains(${struc.getName.head}))"),
+      SMethodStatement(content = s"${struc.getName} -= ${struc.getName.head}", usedTypes = Set(struc.getTypeElement)))) {
 
 }
\ No newline at end of file